Lee Valley Loop Hoe

Not only is the hoe only 3" wide, but the loop design lets you see where the complete hoe blade is at all times, avoiding accidents that slice plants other than weeds.

The thin, stainless steel loop slides through the soil with minimal resistance. Designed to be used in a near vertical position (like a collinear hoe) it is very easy on the back, letting you use a motion much like sweeping.